We've only been in October. I know hurricane season runs through November. On our first cruise, there was a hurricane that made it impossible for the Captain to dock at CC. But then the next visit weather was great! Then the 3rd visit, started off nice but ended with rain by the end of the day. You just never know.... You could always look at an almanac for Nassau since that's the closest island to CC. And some pixie dust for good weather for you!
Have fun no matter what!